1 // Copyright (C) 2007-2022 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License, or (at your option) any later version.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 //=============================================================================
24 // File : NETGENPlugin_NETGEN_3D_Remote.cxx
25 // Created : lundi 19 Septembre 2022
26 // Author : Yoann AUDOUIN (CEA)
28 //=============================================================================
31 #include "NETGENPlugin_NETGEN_3D_Remote.hxx"
33 #include "NETGENPlugin_NETGEN_3D.hxx"
35 #include "NETGENPlugin_DriverParam.hxx"
36 #include "NETGENPlugin_Hypothesis.hxx"
38 #include "Utils_SALOME_Exception.hxx"
40 #include <SMESH_Gen.hxx>
41 #include <SMESH_Mesh.hxx>
42 #include <SMESH_MesherHelper.hxx>
43 #include <SMESH_DriverShape.hxx>
44 #include <SMESH_DriverMesh.hxx>
45 #include <SMESHDS_Mesh.hxx>
46 #include <SMESH_MeshLocker.hxx>
51 #include <boost/filesystem.hpp>
52 namespace fs = boost::filesystem;
61 #include <occgeom.hpp>
64 #include <ngexception.hpp>
67 #include <core/exception.hpp>
75 NETGENPLUGIN_DLL_HEADER
76 extern MeshingParameters mparam;
78 NETGENPLUGIN_DLL_HEADER
79 extern volatile multithreadt multithread;
81 using namespace nglib;
83 //=============================================================================
87 //=============================================================================
89 NETGENPlugin_NETGEN_3D_Remote::NETGENPlugin_NETGEN_3D_Remote(int hypId, SMESH_Gen * gen)
90 : NETGENPlugin_NETGEN_3D(hypId, gen)
92 _name = "NETGEN_3D_Remote";
95 //=============================================================================
99 //=============================================================================
101 NETGENPlugin_NETGEN_3D_Remote::~NETGENPlugin_NETGEN_3D_Remote()
106 * @brief Fill the structure netgen_param with the information from the hypothesis
108 * @param hyp the hypothesis
109 * @param aParams the netgen_param structure
111 void NETGENPlugin_NETGEN_3D_Remote::fillParameters(const NETGENPlugin_Hypothesis* hyp, netgen_params &aParams)
113 aParams.maxh = hyp->GetMaxSize();
114 aParams.minh = hyp->GetMinSize();
115 aParams.segmentsperedge = hyp->GetNbSegPerEdge();
116 aParams.grading = hyp->GetGrowthRate();
117 aParams.curvaturesafety = hyp->GetNbSegPerRadius();
118 aParams.secondorder = hyp->GetSecondOrder() ? 1 : 0;
119 aParams.quad = hyp->GetQuadAllowed() ? 1 : 0;
120 aParams.optimize = hyp->GetOptimize();
121 aParams.fineness = hyp->GetFineness();
122 aParams.uselocalh = hyp->GetSurfaceCurvature();
123 aParams.merge_solids = hyp->GetFuseEdges();
124 aParams.chordalError = hyp->GetChordalErrorEnabled() ? hyp->GetChordalError() : -1.;
125 aParams.optsteps2d = aParams.optimize ? hyp->GetNbSurfOptSteps() : 0;
126 aParams.optsteps3d = aParams.optimize ? hyp->GetNbVolOptSteps() : 0;
127 aParams.elsizeweight = hyp->GetElemSizeWeight();
128 aParams.opterrpow = hyp->GetWorstElemMeasure();
129 aParams.delaunay = hyp->GetUseDelauney();
130 aParams.checkoverlap = hyp->GetCheckOverlapping();
131 aParams.checkchartboundary = hyp->GetCheckChartBoundary();
134 aParams.meshsizefilename = hyp->GetMeshSizeFile();
135 aParams.closeedgefac = 2;
136 aParams.nbThreads = hyp->GetNbThreads();
139 aParams.meshsizefilename = hyp->GetMeshSizeFile();
140 aParams.closeedgefac = 0;
147 * @brief write in a binary file the orientation for each surface element of the mesh
149 * @param aMesh The mesh
150 * @param aShape the shape associated to the mesh
151 * @param output_file name of the binary file
153 void NETGENPlugin_NETGEN_3D_Remote::exportElementOrientation(SMESH_Mesh& aMesh,
154 const TopoDS_Shape& aShape,
155 const std::string output_file)
157 SMESH_MesherHelper helper(aMesh);
158 NETGENPlugin_Internals internals( aMesh, aShape, /*is3D=*/true );
159 SMESH_ProxyMesh::Ptr proxyMesh( new SMESH_ProxyMesh( aMesh ));
160 std::map<vtkIdType, bool> elemOrientation;
162 for ( TopExp_Explorer exFa( aShape, TopAbs_FACE ); exFa.More(); exFa.Next())
164 const TopoDS_Shape& aShapeFace = exFa.Current();
165 int faceID = aMesh.GetMeshDS()->ShapeToIndex( aShapeFace );
166 bool isInternalFace = internals.isInternalShape( faceID );
168 if ( !isInternalFace &&
169 helper.NbAncestors(aShapeFace, aMesh, aShape.ShapeType()) > 1 )
170 // IsReversedSubMesh() can work wrong on strongly curved faces,
171 // so we use it as less as possible
172 isRev = helper.IsReversedSubMesh( TopoDS::Face( aShapeFace ));
174 const SMESHDS_SubMesh * aSubMeshDSFace = proxyMesh->GetSubMesh( aShapeFace );
175 if ( !aSubMeshDSFace ) continue;
177 SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
178 if ( _quadraticMesh &&
179 dynamic_cast< const SMESH_ProxyMesh::SubMesh*>( aSubMeshDSFace ))
181 // add medium nodes of proxy triangles to helper (#16843)
182 while ( iteratorElem->more() )
183 helper.AddTLinks( static_cast< const SMDS_MeshFace* >( iteratorElem->next() ));
185 iteratorElem = aSubMeshDSFace->GetElements();
187 while ( iteratorElem->more() ) // loop on elements on a geom face
190 const SMDS_MeshElement* elem = iteratorElem->next();
192 error( COMPERR_BAD_INPUT_MESH, "Null element encounters");
193 if ( elem->NbCornerNodes() != 3 )
194 error( COMPERR_BAD_INPUT_MESH, "Not triangle element encounters");
195 elemOrientation[elem->GetID()] = isRev;
196 } // loop on elements on a face
197 } // loop on faces of a SOLID or SHELL
200 std::ofstream df(output_file, ios::out|ios::binary);
201 int size=elemOrientation.size();
203 df.write((char*)&size, sizeof(int));
204 for(auto const& [id, orient]:elemOrientation){
205 df.write((char*)&id, sizeof(vtkIdType));
206 df.write((char*)&orient, sizeof(bool));
212 * @brief Compute mesh associate to shape
214 * @param aMesh The mesh
215 * @param aShape The shape
216 * @return true fi there are some error
218 bool NETGENPlugin_NETGEN_3D_Remote::Compute(SMESH_Mesh& aMesh,
219 const TopoDS_Shape& aShape)
222 SMESH_MeshLocker myLocker(&aMesh);
223 SMESH_Hypothesis::Hypothesis_Status hypStatus;
224 NETGENPlugin_NETGEN_3D::CheckHypothesis(aMesh, aShape, hypStatus);
228 // Temporary folder for run
229 fs::path tmp_folder = aMesh.tmp_folder / fs::unique_path(fs::path("Volume-%%%%-%%%%"));
230 fs::create_directories(tmp_folder);
231 // Using MESH2D generated after all triangles where created.
232 fs::path mesh_file=aMesh.tmp_folder / fs::path("Mesh2D.med");
233 fs::path element_orientation_file=tmp_folder / fs::path("element_orientation.dat");
234 fs::path new_element_file=tmp_folder / fs::path("new_elements.dat");
235 fs::path tmp_mesh_file=tmp_folder / fs::path("tmp_mesh.med");
236 // Not used kept for debug
237 //fs::path output_mesh_file=tmp_folder / fs::path("output_mesh.med");
238 fs::path shape_file=tmp_folder / fs::path("shape.brep");
239 fs::path param_file=tmp_folder / fs::path("netgen3d_param.txt");
240 fs::path log_file=tmp_folder / fs::path("run.log");
241 fs::path cmd_file=tmp_folder / fs::path("cmd.log");
242 std::string mesh_name = "MESH";
245 SMESH_MeshLocker myLocker(&aMesh);
247 exportShape(shape_file.string(), aShape);
250 netgen_params aParams;
251 fillParameters(_hypParameters, aParams);
253 exportNetgenParams(param_file.string(), aParams);
255 // Exporting element orientation
256 exportElementOrientation(aMesh, aShape, element_orientation_file.string());
259 // Calling run_mesher
261 fs::path run_mesher_exe =
262 fs::path(std::getenv("NETGENPLUGIN_ROOT_DIR"))/
266 fs::path("NETGENPlugin_Runner.exe");
268 fs::path("NETGENPlugin_Runner");
271 cmd = run_mesher_exe.string() +
272 " NETGEN3D " + mesh_file.string() + " "
273 + shape_file.string() + " "
274 + param_file.string() + " "
275 + element_orientation_file.string() + " "
276 + new_element_file.string() + " "
278 // Writing command in log
280 std::ofstream flog(cmd_file.string());
284 MESSAGE("Running command: ");
288 // Building arguments for QProcess
289 QString program = run_mesher_exe.c_str();
290 QStringList arguments;
291 arguments << "NETGEN3D";
292 arguments << mesh_file.c_str();
293 arguments << shape_file.c_str();
294 arguments << param_file.c_str();
295 arguments << element_orientation_file.c_str();
296 arguments << new_element_file.c_str();
298 QString out_file = log_file.c_str();
300 myProcess.setStandardOutputFile(out_file);
302 myProcess.start(program, arguments);
303 // Waiting for process to finish (argument -1 make it wait until the end of
304 // the process otherwise it just waits 30 seconds)
305 myProcess.waitForFinished(-1);
306 int ret = myProcess.exitStatus();
310 std::string msg = "Issue with command: \n";
311 msg += "See log for more details: " + log_file.string() + "\n";
313 throw SALOME_Exception(msg);
317 SMESH_MeshLocker myLocker(&aMesh);
318 std::ifstream df(new_element_file.string(), ios::binary);
320 int Netgen_NbOfNodes;
321 int Netgen_NbOfNodesNew;
322 int Netgen_NbOfTetra;
323 double Netgen_point[3];
324 int Netgen_tetrahedron[4];
327 SMESH_MesherHelper helper(aMesh);
328 // This function is mandatory for setElementsOnShape to work
329 helper.IsQuadraticSubMesh(aShape);
330 helper.SetElementsOnShape( true );
332 // Number of nodes in intial mesh
333 df.read((char*) &Netgen_NbOfNodes, sizeof(int));
334 // Number of nodes added by netgen
335 df.read((char*) &Netgen_NbOfNodesNew, sizeof(int));
337 // Filling nodevec (correspondence netgen numbering mesh numbering)
338 vector< const SMDS_MeshNode* > nodeVec ( Netgen_NbOfNodesNew + 1 );
339 //vector<int> nodeTmpVec ( Netgen_NbOfNodesNew + 1 );
340 SMESHDS_Mesh * meshDS = helper.GetMeshDS();
341 for (int nodeIndex = 1 ; nodeIndex <= Netgen_NbOfNodes; ++nodeIndex )
344 df.read((char*) &nodeID, sizeof(int));
345 nodeVec.at(nodeIndex) = meshDS->FindNode(nodeID);
348 // Add new points and update nodeVec
349 for (int nodeIndex = Netgen_NbOfNodes +1 ; nodeIndex <= Netgen_NbOfNodesNew; ++nodeIndex )
351 df.read((char *) &Netgen_point, sizeof(double)*3);
353 nodeVec.at(nodeIndex) = helper.AddNode(Netgen_point[0],
359 df.read((char*) &Netgen_NbOfTetra, sizeof(int));
361 for ( int elemIndex = 1; elemIndex <= Netgen_NbOfTetra; ++elemIndex )
363 df.read((char*) &Netgen_tetrahedron, sizeof(int)*4);
365 nodeVec.at( Netgen_tetrahedron[0] ),
366 nodeVec.at( Netgen_tetrahedron[1] ),
367 nodeVec.at( Netgen_tetrahedron[2] ),
368 nodeVec.at( Netgen_tetrahedron[3] ));
376 * @brief Assign submeshes to compute
378 * @param aSubMesh submesh to add
380 void NETGENPlugin_NETGEN_3D_Remote::setSubMeshesToCompute(SMESH_subMesh * aSubMesh)
382 SMESH_MeshLocker myLocker(aSubMesh->GetFather());
383 SMESH_Algo::setSubMeshesToCompute(aSubMesh);